- Brainpickings - A inventory of a meaningful life
- Math pages - A collection of enriching math and physics
- Physics Stackexchange - A crowd-sourced question and answer website.
- Passion planner - Free calendar for personal usage
- xkcd comics - A webcomic of romance, sarcasm, math and language
- PIRSA - Perimeter Institute Recorded Seminar Archive
- Quanta Magazine - Public service journalism on math and basic science problems